报道了一种四步法合成高效聚烯烃阻燃剂BN451的新工艺,讨论了合成工艺条件对产率的影响情况,确定了最佳的合成条件,并对产品进行表征。红外谱图分析表明:存在2994、2957、2880、1438、1394、1338cm-1以及1761、1722cm-1等处目标产物的特征吸收峰;元素分析表明其实测值与理论值基本一致,进一步证明实验终产物即为目标产物。 A new four-step synthetic high-performance polyolefin flame retardant BN451 was reported. The effects of the synthesis conditions on the yield were discussed. The optimum synthesis conditions were determined and the products were characterized. The infrared spectrum analysis showed that there were characteristic absorption peaks at 2994, 2957, 2880, 1438, 1394, 1338 cm-1 and 1761, 1722 cm-1 etc. The elemental analysis showed that the measured value was basically consistent with the theoretical value, The final product is the target product.